Flying-machine.



M. F. l. L. JUMEAU.

FLYING momma.

APPLICATION FILED JAN.16. 1912.

Patented Apr 13,1915.

3 SHEETS-SHEET 1.

Patented Apr. 13, 1915.

3 SHEETS-SHEET 2.

KW F. J. L. JUMEAU.

FLYING MACHINE.

APPLICATION FILED JAM. 16. 1912.

MAL

M. F. J L. JUMEAU. FLYING MACHINE.

APPLICATIQN FILED mms. 1912.

1 $5 1 9 1 Q I Patented Apr. 13, 1915.

3 SHEETS-SHEBT 3.

NQOIS 'rosnrmnnoncn Juneau, or Prion-Penn, cannonra, 1 at rnno-cnrna.

' rmmre-cnntn.

I Specification of Letters ratent.

ratentea a e. farm.

- a lication nxa January is, new. Serial no. evince.

To all whom it may concern Be it known that am FnANgoIs do snrn Lnoncn JUMEAU, civil engineer, c1t1-' zen of France, residing at Phom-Penh, in the Kingdom of Cambodia, French Indo- China, have invented new and useful Tmprovements in Flying- Machines, of which the'following is a specification.

This invention relates to a flying machine in which the sustentating force is created by the reaction of the atmos here on aerial turbins'or blade Wheels which rotate freely upon supporting shafts carried by the machine frame.

The air current produced relatively to the.

niachine by the progression thereof under the action of the propeller has thus for-its eflect to rotate the blade wheels and to cause the machine to rise.- Should the ropulsive power fail, for any reason, the ying machine will fall by gravity and theair current generated by the 'fall with regard to the machine will react on the blade wheels and the wheels being capable of rotating freely u on their shafts, an elficient braking action Wlll result sothat the machine instead of falling suddenly will have a smooth descent therefrom that by similar to that of an apparatus provided with a parachute.

Anot er advantage of a flying machine provided with the aerial blade wheels above mentioned is that the centers of pressureon said machine are stationary whatever the direction of the driving wind may be, said centers of pressure being always located at the centers of the blade wheels. It results arranging the center of gravity on a vertical line with the center of pressure, th stability of the machine in flymg is consi erably greater than that of the known machines in which the position of the center of pressure varies according to the direction of the relative wind.

In the annexed drawings: Figure 1 is aand 6 are diagrammatical viewsshowm the manner-of constructing the aerial b ade wheels.

The characteristic feature of the flying machine consists in the arrangement on the.

machine 'of turbines or aerial blade wheels A which in the construction shown are two in number androtate freely upon shafts B the screw propeller F.

concentric cylindrical surfaces havin carried by arms. C, secured to the fre ll) of the machine. The shafts B are in a position slightly inclined to the normal to the direction of flight. The blades of the wheels are so arranged that the wheels rotate in 6a; opposite directions for compensating the torque resulting 'from' the rotation. The front part of the frame I) carries the pro-. pulsive device comprisin the'motor. E and t the rear end the" en; frame D carries the vertical rudder G- 'and the horizontal rudder H formed of two planes rigidly secured together. The planes T are stationary and act as a centerboard- The. aviator seated at J operates the ver- 7t;

'tical rudder G by his feet, through the medium of the lever K. The lever L serves to control the horizontal rudder. The controlpurpose of maintaining the lateral stability and permitting in the curves the necessary inclination of the machine,

The aerial turbines or blade wheels are constructed as follows: a b (Fig. 4;) are two the radii c and d and limited by parallelp anes it and y respectively, symmetricah with regard to t e plane 7" f. Two lines at and e m are drawn throughthe axis e of the cylinders, and cut the circles j at Z and m and thecircles a" at a and o. The straight lines Z m and a, 0 will be taken as the'generatrices of a windin surface which forms one blade V of the eel. The diflerent blades of the whe'el are determined by drawin an appropriate number of radlal equidistant lines similar to.e Z and e at through the axis e as shown in Fig. 5 and connecting the intersection points in the manner described for the pointslmno.

- In practice, the circles y are embodled in 5 the form of a circular rim Q having a chanml cross section as shown in Fig. 6.and pro-- vided in its flanges with a number of holes twice that of the blades or vanes. The circles'iare formed by disks R which aresecured to a hub S or made in-one piece with the same, The disks R are provided with the same number of holes,.and spokes T of steel wire are arranged to connect appropriate holes of both series in a manner similar to the linesl n and m o of Fig. 4:. Each of r so ric vanes stretched over'said pairs of'wires,

the warped surfaces above mentioned which forms a blade V is made of a piece of canvas. rigidly secured to the correspondin spokes. The canvas blade is wound at its e ges over the spokes; it is first glued thereon which permlts of obtaining aregular smooth surface .and then sewn for avoiding any dis placement or deformation of the blade. The hub is preferably provided with ball bearmgs. I a

he aerial blade wheels above described are exceedingly light while being of a strong construction and they are applicable with advantage in all apparatus utilizing wind as a source of motive power. now described my invention wh t I clalin' as'new and' desire tea secure by ters Patent is: v

'1. In a flying machine, in combination, a frame, a vertically rotating screw propeller at the forward end of said-frame, means for actuatin said screw propeller, shafts symmetrica y arranged on both sides of the frame at the rear of the screw propeller,

said shafts being slightly inclined t the rear, hubs looselymounted onsaid sha so as to rotate freely thereon, rims encircling the 'hubs, wires stretched in radial planes between the hubsand the so that pairs of said wires define warped surfaces, and fabsaid vanes having relatively lon narrow channels therebetween,. substantia as described and for the purpose set fort 2. In a flying machine, in combination, a frame, a vertically rotatingscrew propeller --at the forward end of said frame, means for rear, hubs loosely mountedon said shafts so as to rotate freely thereon, rims having a width shorter than the length of the hubs and encir the same; w1res stretched in.

tween the hubs the rims so that pairs of said wires define warped radial planes surfaces, and fabric vanesstretched over said pairs Of'Wil'GS, said vanes having relatively; long narrow channels therebetween, substantially as described and for the purposeset forth. v

' In testimony whereof have signed my name to this specification in the two witnesses. g I imam rmqolsmsnrn LEONGE wimp.

Witnesses:

;= L. C. Noemi,

presence of 

